Differences in faculae identification between direct limb observations (as in state-of-the-art studies) and identifications performed on disc-centre data, with the results re-projected to the limb (this study). Colour B shows facular pixels identified both at the disc centre and at the limb, while colour C shows the faculae missed at the limb compared to the disc-centre view. Colour D shows pixels identified as faculae in the limb data, which do not appear as faculae at the disc centre. The same sub-region and dataset pair as in Fig. 4 is shown.